<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        /* 选择器 {}  */
        p {
            /* css属性 */
            color: red;
        }
    </style>
</head>

<body>
    <p>初体验</p>
</body>

</html>